- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04702854
Evaluation of Ultrasound Biomicroscopy in the Local Staging of Cutaneous Melanoma (BMUMM)
Cutaneous melanomas represent 4 to 11% of cutaneous cancers, but is responsible for 75% of the deaths reported for these pathologies. The incidence rate double every 10 years. Fourteen thousand cases and 1700 deaths were reported in France in 2015.
The local staging of the cancer is represented by the Breslow index, which is measured on histological analysis, corresponding to the maximum depth of the cancer. Breslow index is a good pronostic value, and is used to choose for the best treatment for the patient.
Having access to the Breslow index before the first resection of the tumor would allow dermatologists to make a complete resection with the best treatment, and the analysis of the sentinel lymph node, all during the same surgical time. Currently, patients need 2 surgeries : one before the Breslow index, and a second one after.
The depth of cutaneous melanoma was already evaluated with High-Frequency Ultrasound (HF-US), but gave disappointing results, with Breslow index not being accurately measured.
Only 50% of tumors less than 2mm depth were efficiently measured. Results were even worst for bigger tumors.
Ultrasound biomicroscopy (UBM) is a new approach, depending on the use of ultra high frequency and large-band transducer. Nice's CHU acquired the only ultrasound device capable of applying such ultra high frequency ultrasound (UHF-US) to human tissues. The device is a VEVO MD (Vevo MD, Toronto, Canada) and equip the Ultrasound Department since June 2018.
The images investigators can assess with this device have an axial resolution of 30µm, for a maximum emission frequency of 70MHz, which was not attainable until this day in human care.
Furthermore, when compared to some of the mono-frequency devices investigators experimented before, this device allow investigators to attain a maximum depth of analysis up to 8mm.
In consequence, this device seems to be able to realize an extremely precise analysis of the skin, and of the cutaneous melanomas, for a structural analysis, as well as a precise depth measurement, and should be evaluated in the measurement of the Breslow Index.
The objective of the study is to analyze the interest of ultrasound biomicroscopy in the pre-therapeutic evaluation of the Breslow index of cutaneous melanoma, compared to histological findings.
The study will include 60 patients with cutaneous melanomas, recently diagnosed in the Dermatology Department of the Nice University Hospital (Pr Bahadoran, Pr Passeron, Pr Lacour). Each patient will beneficiate from complete Ultrasound biomicroscopy analysis of the tumor The examination will be made blindly by 2 operator, both with experience in Ultra High frequency Ultrasound examinations (Dr Azulay, Dr Raffaelli).
The maximum depth of the melanoma (Breslow index) will be recorded in µm. After surgical resection, the histologic analysis (Dr Long, Pr Hofman, Clinical and Experimental AnatomoPathologic laboratory, Nice's University Hospital) will measure the gold-standard Breslow Index.
The comparison will analyze the capacity of Ultrasound biomicroscopy for a precise measurement of the Breslow Index, as well as the inter and intra-operator concordance.
If the results of this study are positives and suggest a modification of the therapeutic strategy, a larger multicentric study would be launched in the near future.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Nicolas AZULAY
- Phone Number: +33 04 92 03 77 16
- Email: azulay.n@chu-nice.fr
Study Contact Backup
- Name: Charles RAFFAELLI
- Email: raffaelli.c@chu-nice.fr
Study Locations
-
-
-
Nice, France
- Recruiting
- CHU de Nice
-
Contact:
- Nicolas AZULAY
- Phone Number: +33 04 92 03 77 16
- Email: azulay.n@chu-nice.fr
-
Principal Investigator:
- Nicolas AZULAY
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Clinical suspicion of cutaneous melanoma
- Age ≥ 18 years
- Social Security affiliation
- Approval of patient and signature of informed consent form
Exclusion Criteria:
- Counter-indication to the surgical resection of the cutaneous melanoma
- Vulnerable patient (Under-supervision patients or deprived of liberty patients)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Experimental
Measure of cutaneous melanomas by ultrasound biomicroscopy
|
Measure of cutaneous melanomas by ultrasound Biomicroscopy
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Measurement of the Breslow Index with Ultrasound Biomicroscopy
Time Frame: In the 14 days following the inclusion
|
The measurement of the thickness of the malignant melanoma will be carried out in Ultrasound Biomicroscopy in two orthogonal planes using the maximum value obtainedThe measurement will be performed pre-operatively with the device (transducer) attached to an articulated arm from the anterior edge of the lesion to the interface between the posterior border of the lesion and the underlying dermis or hypodermis. The measurement will be expressed in mm. The histological measurement will be performed according to the usual techniques after fixation of the surgical specimen. It will also be expressed in µm. |
In the 14 days following the inclusion
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Measurement of the thickness of the malignant melanoma with High Frequency Ultrasound (18MHz) and compare it to the result obtained by Ultrasound Biomicroscopy
Time Frame: In the 14 days following the inclusion
|
Conventional High Frequency Ultrasound (18MHz) will be performed prior to Ultrasound Biomicroscopy analysis using an 18 MHz probe according to the usual technique used in High Frequency Ultrasound (freehand) and the thickness of the malignant melanoma will be expressed in µm.
Standard gold is defined as at the main objective.
|
In the 14 days following the inclusion
|
Measurement of the thickness of the malignant melanoma with High Frequency Ultrasound and compare it to the result obtained by Ultrasound Biomicroscopy
Time Frame: In the 14 days following the inclusion
|
High Frequency Ultrasound (33MHz) will be performed prior to Ultrasound Biomicroscopy analysis using an 33 MHz probe according to the usual technique used in High Frequency Ultrasound (freehand) and the thickness of the malignant melanoma will be expressed in µm.
Standard gold is defined as at the main objective.
|
In the 14 days following the inclusion
|
Global echogenicity of the malignant melanoma in Ultrasound Biomicroscopy
Time Frame: In the 14 days following the inclusion
|
Global echogenicity of the malignant melanoma in relation to the dermis: hypoechoic, isoechoic, hyperechoic
|
In the 14 days following the inclusion
|
Avascular areas of malignant melanoma using power Doppler in Ultrasound Biomicroscopy
Time Frame: In the 14 days following the inclusion
|
Presence of Avascular areas of malignant melanoma using power Doppler in Ultrasound Biomicroscopy Data will be compared with the histological data
|
In the 14 days following the inclusion
|
Measurement of the thickness of the malignant melanoma with Ultrasound Biomicroscopy
Time Frame: In the 14 days following the inclusion
|
Measurement of the thickness of malignant melanoma Ultrasound Biomicroscopy by 2 differents investigators to evaluate the intra and inter-observer matching.
|
In the 14 days following the inclusion
|
Measurement of the radiofrequency signal acquired during the Ultrasound Biomicroscopy examination of malignant melanoma
Time Frame: In the 14 days following the inclusion
|
The radiofrequency signal acquired in Ultrasound Biomicroscopy will be analyzed on a platform dedicated to image processing, looking for radio frequency signal specifics of melanoma, compared to adjacent healthy skin.
|
In the 14 days following the inclusion
|
Structure of the malignant melanoma in Ultrasound Biomicroscopy
Time Frame: In the 14 days following the inclusion
|
Homogeneous or heterogeneous structure of the malignant melanoma in Ultrasound Biomicroscopy
|
In the 14 days following the inclusion
|
Hyperechoic or anechogenic foci of the malignant melanoma in Ultrasound Biomicroscopy
Time Frame: In the 14 days following the inclusion
|
Presence of hyperechoic or anechogenic foci in Ultrasound Biomicroscopy
|
In the 14 days following the inclusion
|
hyperechoic spans of the malignant melanomain Ultrasound Biomicroscopy
Time Frame: In the 14 days following the inclusion
|
Presence of hyperechoic spans in Ultrasound Biomicroscopy
|
In the 14 days following the inclusion
|
Appearance of the contours of the melanoma
Time Frame: In the 14 days following the inclusion
|
Appearance of the contours of the melanoma in Ultrasound Biomicroscopy : regular, irregular, or blurred
|
In the 14 days following the inclusion
|
Type of vascularization of malignant melanoma using power Doppler in Ultrasound Biomicroscopy
Time Frame: In the 14 days following the inclusion
|
Type of vascularization of malignant melanoma using power Doppler in Ultrasound Biomicroscopy: homogeneous, heterogeneous Data will be compared with the histological data
|
In the 14 days following the inclusion
|
Intensity of vascularization relative to the adjacent normal dermis of malignant melanoma using power Doppler in Ultrasound Biomicroscopy
Time Frame: In the 14 days following the inclusion
|
Intensity of vascularization relative to the adjacent normal dermis, with Doppler parameters fixed Data will be compared with the histological data
|
In the 14 days following the inclusion
|
Collaborators and Investigators
Investigators
- Principal Investigator: Nicolas AZULAY, Centre Hospitalier Universitaire de Nice
Study record dates
Study Major Dates
Study Start (Estimated)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 18-AOIP-04
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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